David Chairman
CIK 1971553 · SVP, R&D · last filed 2026-06-16
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
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Disclosed Exposure
$3.2K
Companies
1
Total Filings
20
Lifetime Open-Market Net
-$50.3K
Holdings By Company
Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| VLN.WS | SVP, R&D | 403,968 | $0.01 | $3.2K | -$50.3K | 7 | 2026-06-16 |
Recent Filings · Page 2 of 2
20 filingsInsider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-04-16 | VLN | Notice (144) | −8,000 | -$11.0K | EDGAR |
| 2026-01-12 | VLN | Notice (144) | −20,000 | -$37.4K | EDGAR |
| 2025-10-15 | VLN | Notice (144) | −4,000 | -$7.2K | EDGAR |
| 2025-07-24 | VLN | Notice (144) | −4,000 | -$10.9K | EDGAR |
| 2025-06-27 | VLN | Notice (144) | −1,194 | -$2.9K | EDGAR |
| 2025-06-26 | VLN | Notice (144) | −6,806 | -$15.9K | EDGAR |
| 2025-04-15 | VLN | Notice (144) | −8,000 | -$16.9K | EDGAR |
| 2025-02-18 | VLN | Notice (144) | −4,000 | -$10.1K | EDGAR |
| 2025-01-16 | VLN | Notice (144) | −4,000 | -$12.7K | EDGAR |
| 2024-12-30 | VLN | Notice (144) | −4,000 | -$8.1K | EDGAR |
Showing 11–20 of 20
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Page 2 of 2
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.